/*-
 * #%L
 * HAPI-FHIR Storage Batch2 Jobs
 * %%
 * Copyright (C) 2014 - 2025 Smile CDR, Inc.
 * %%
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * #L%
 */
package ca.uhn.fhir.batch2.jobs.bulkmodify.framework.common;

import ca.uhn.fhir.util.JsonUtil;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.TreeNode;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.databind.node.ArrayNode;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

/**
 * This Jackson deserializer is used to deserialize an array of raw JSON objects into a list of strings.
 */
public class ArrayOfRawJsonObjectsAsStringsDeserializer extends JsonDeserializer<List<String>> {

	@Override
	public List<String> deserialize(JsonParser theJsonParser, DeserializationContext theContext) throws IOException {
		TreeNode tree = theJsonParser.getCodec().readTree(theJsonParser);
		ArrayNode treeArray = (ArrayNode) tree;

		List<String> retVal = new ArrayList<>(treeArray.size());
		for (int i = 0; i < treeArray.size(); i++) {
			retVal.add(JsonUtil.serialize(treeArray.get(i), false));
		}

		return retVal;
	}
}
